“retrospective study”的概念、定义、翻译、参考文献-科学参考

单词	retrospective study
释义	retrospective study Encyclopedia 理学临床试验的自适应性设计释 retrospective study观察性研究在自然状态下对研究对象的特征进行观察、记录，并对结果进行描述和对比分析的研究。 Mathematics retrospective study回溯研究
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